Patents by Inventor Daniel Spero

Daniel Spero has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Measuring particulate in liquid storage tanks
    Patent number: 7266994
    Abstract: This device provides for measuring the particulate content in a fluid storage tank. A sample of fluid is taken from a fluid storage tank; and compared to a field visual reference chart. Using this chart results in identifying tanks containing a maximum or average particulate allowable.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: September 11, 2007
    Assignee: Marathon Ashland Petroleum Co.
    Inventors: Daniel Spero, James Sheridan